Students thinking together

Author:Diego Lieban

These moments were registered during a national event promoted by OBMEP (Brazilian Mathematics Olympiad of Public Schools) for enthusiastic students.

source: DC

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רישום חופשי
Mondrian's Puzzle
Sum of Squares: Proof without Words
Regular Polygons and Equivalent Triangles
The Gardener's Circle

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By: Jess and Brittney at Animas High School
Sliding Triangles
Use of technology in teaching Mathematics - GeoGebra
inversion_angle_invariance
Helix (3d Parametric, velocity, accel)

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Special Points
Secant Line or Secant
Geometric Mean
Inequalities
Hypothesis Testing